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ICPMS daily performance check report, April 10, 2002

Machine-extracted title · confidence 95%

Daily instrument performance verification log for ICPMS analysis including intensity and standard deviation data for multiple elements.

NYC-WTC_000040452–000040596

Folder label: “ICPMS 4/10/02

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NYC 9/11 Public Portal Document

WESTCHESTER COUNTY DEPT OF LABS AND RESEARCH Method 200.8 - Summary Report Sample ID*. ICV CALBK Sample Date/Time: Wednesday, April 10,2002 09:45:15 Sample Type: Sample Sample Description: Number of Replicates: 3 Method File: d:\elandata\Method\NEWQ200.8.mth Dataset File: d:\elandata\Dataset\NEWQ\NEWQ\ICV CAL BK.422 Aliquot Volume (mL): Diluted To Volume (mL):

Concentration Results Analyte Mass Meas. Intens. Mean Meas. Intens. RSD Net Intens. Mean Cone. Mean Cone. RSD Sample Unit Be 9 12.333 16.878 0.000 0.00513 82.81 ug/L Se-1 45 534091.441 0.117 534091.441 ug/L Cr 52 7229.613 1.047 -0.000 -0.01033 72.25 ug/L Cr 53 599.026 4.919 -0.000 -0.20159 12.45 ug/L Mn 55 2268.306 1.225 -0.001 -0.03287 4.95 ug/L Ni 60 52.667 23.588 0.000 0.00997 50.48 ug/L Cu 63 224.338 1.802 -0.001 -0.08037 0.92 ug/L Cu 65 132.002 3.030 0.000 0.01274 11.58 ug/L Zn 66 780.708 1.632 -0.001 -0.03226 25.77 ug/L Zn 67 163.336 7.655 -0.000 -0.02344 173.69 ug/L Zn 68 575.357 3.737 -0.001 -0.04329 42.05 ug/L Ge 72 101218.038 0.334 101218.038 ug/L As 75 336.350 12.539 0.000 0.00585 358.50 ug/L Se 77 124.002 1.397 -0.000 -0.09305 8.45 ug/L Se 82 222.672 6.575 0.000 0.07539 87.49 ug/L Ag 107 1308.774 5.264 0.000 0.04014 13.90 ug/L > In 115 1432589.745 0.409 1432589.745 ug/L Sb 121 393.346 7.948 0.000 0.03583 8.98 ug/L Sb 123 273.905 5.824 0.000 0.03202 6.96 ug/L Ba 135 54.001 17.666 -0.000 -0.00121 267.45 ug/L Ba 137 80.668 17.721 -0.000 -0.00068 433.57 ug/L Ho 165 1924254.002 1.756 0.145 ug/L > Tb 159 1915792.989 0.885 1915792.989 ug/L TI 205 844.381 3.595 -0.000 -0.00101 140.25 ug/L Pb 208 1916.765 0.080 -0.000 -0.00328 14.97 ug/L

QC Calculated Values Analyte Mass QC Std % Recovery Int Std % Recovery Spike % Recovery Dilution % Diff Dup. Rei. % Diff ' Be 9 > Sc-1 45 94.939 Cr 52 Cr 53 Mn 55 Ni 60 Cu 63

Sample ID: ICV CALBK Report Date/Time: Wednesday, April 10, 2002 09:48:51 Page 1

NYC-WTC_000040459

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NYC-WTC_000040459Source: NYC Law Department, mirrored locally

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